Home / 1,761.50-2,430.85-964.82

Finding the Fourth Proportional to 1,761.50, 2,430.85 and 964.82

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Solution

The fourth proportional to 1,761.50, 2,430.85 and 964.82 is: 1,331.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,761.50 : 2,430.85 = 964.82 : x
  2. Step 2: Convert to fraction form
    1,761.50/2,430.85 = 964.82/x
  3. Step 3: Cross multiply
    1,761.50x = 2,430.85 × 964.82
  4. Step 4: Simplify right side
    1,761.50x = 2,345,326.62
  5. Step 5: Solve for x
    x = 2,345,326.62/1,761.50
  6. Step 6: Final answer
    x = 1,331.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.